[ECOS] dual uart driver

[ECOS] dual uart driver

[Chi Lam]

 Hi,
 
 I am implementing a 2nd uart driver in eCos on the
 Broadcom BMC91112 mips chip. The first uart driver
 is working fine which is provided by Broadcom. I have
 the following questions on the 2nd uart driver:
 
 1. I plan to use a different uart base address and a
 different interrupt number for the second uart. Can
 I share the same ISR routine for both uarts?
 
 2. In which situation should I use polling and
 interrupt method? I plan to use the interrupt
 method.
 
 3. Where can I get sample implementation for 2 uart
 driver?
 
 Thanks.
 
 Chi Lam



		
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Re: [ECOS] dual uart driver

[Gary Thomas]

On Sun, 2005-03-27 at 18:28 -0800, Chi Lam wrote:
>  Hi,
>  
>  I am implementing a 2nd uart driver in eCos on the
>  Broadcom BMC91112 mips chip. The first uart driver
>  is working fine which is provided by Broadcom. I have
>  the following questions on the 2nd uart driver:
>  
>  1. I plan to use a different uart base address and a
>  different interrupt number for the second uart. Can
>  I share the same ISR routine for both uarts?
>  
>  2. In which situation should I use polling and
>  interrupt method? I plan to use the interrupt
>  method.
>  
>  3. Where can I get sample implementation for 2 uart
>  driver?

There are many such examples in the source tree.  Look at any of
the PowerPC serial drivers (devs/serial/powerpc/...)

Basically, you need to provide tables (descriptions) of each 
device you want to support.  There are different [table driven]
drivers for debug I/O (kept in your platform HAL) and interrupt
driven drivers (in the devs/serial tree)

n.b. repeating your query three times in 24 hours does not improve
your chances of a speedy reply.  This is a purely voluntary project
(and list), so you need to be patient.

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------


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[ECOS] remove from the list

[Chi Lam]

Hi,

How can I be removed from the discussion list? Thanks.

Chi Lam


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Re: [ECOS] remove from the list

[Fabian Scheler]

Look here: http://ecos.sourceware.org/intouch.html

Ciao, Fabain

2005/9/15, Chi Lam <chiklam123@yahoo.com>:
> Hi,
> 
> How can I be removed from the discussion list? Thanks.
> 
> Chi Lam
> 
> 
> __________________________________________________
> Do You Yahoo!?
> Tired of spam?  Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com
> 
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> 
>

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